package Collection;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

public class ListDemo {
    public static void main(String[] args) {
        List<String> list= new LinkedList<>();
        list.add("one");
        list.add("two");
        list.add("three");
        list.add("four");
        list.add("five");
        System.out.println("list:"+list);

        String e=list.get(2);//three
        System.out.println(e);

        Iterator<String> it= list.iterator();
        while (it.hasNext()){
            System.out.println(it.next());
        }


        for (int i=0;i< list.size();i++){
            System.out.println(list.get(i));
        }

        for (String s:list){
            System.out.println(s);
        }

        System.out.println("========================================");

        String old=list.set(2,"seven");
        System.out.println("list"+list);
        System.out.println(old);

        String s=list.remove(2);
        System.out.println("list:"+list);
        System.out.println(s);

        list.add(3,"seven");
        System.out.println(list);

    }
}
